Sectional steam-boiler



Patented July 5, 1892.

um' :;i;;;i.'a;ii @i G. P. STEEL. SEGTIONAL STEAM BOILBR.

lll

(No Model.)

le uns cunnmmlngw., A moron n c NITED STATES GEORGE STEEL, OE PHILADELPHIA, PENNSYLVANIA.

SECTIONAL STEAM-BOILER.

SPECIFICATION forming' part of LettersPatent No. L178,208, dated July 5 1892. Application iiled March 2, 1892. ySerial lic/423,462. (No model.)

.To all whom t may concern: i

Be it known that I, GEORGEP. STEEL, acitizen of the United States of America, residinghad to the accompanying drawings, and to the' figures of reference marked thereon, which form a part of this specification.

It is the object of my invention to provide a steam -generator of the simplest possible form consistent with the highest effectiveness.

It is a further object to so construct the boiler that it may be easily handled in setting it up or taking it down, all the parts being fitted to each other, so that the services of the skilled mechanic are rendered unnecessary.

I aim, also, to provide such a construction as will'furnish a large combustion-chamber and at the same timea large water-space and fluespace without materially increasing the size of the boiler.

In the accompanying drawings, Figurel is the central vertical section through the boiler. Fig. 2 is a plan view of the combustion-chamber section.

The boiler is sectional in form, and consists ot' a lower section 1, forming the base and ashpit of the boiler. This is formed with a seat 2, upon which rests the combustion-chamber section 3. This section exten ds upwardly to the line 4, and is provided with an overhanging portion 5, extending alittle belowits central line. On the upper side of this section three or more depressions 5 are formed,hav ing openings 6, communicating with the interior of the combustion-section, which interior forms the water-space 7. This depression receives a gasket 8, and upon this rests a nipple projecting downwardly from the next section of the boiler above the combustionchamber. An opening through this nipple furnishes communication between the waterspace 7 of the combustion-chamber section and a like space tX of the section 9, so that the water is free to circulate from one water- .the aid of skilled labor.

space to the other, .the joint at -the nipple being water and steam tight. A third section, similar to the section 9, is placed above the said section 9, and a corresponding nipple and vsocket-joint 10 is provided between these sections. The upper section 11 has a long depending flange 12 kand vlonger nipples 13, so that a space 14 is left between the sections 9X and 11, which forms a continuation of the combustion space.A This space (marked 14) communicates with the combustion-chamber throughthecentral opening 16, comprising the magazine and extending centrally through all the sections. It will "be noticed that the sections above the combustion-chamber sections extend inwardly or overlap said combustion-section, and in this overlapping portion the vertical ues 17 are formed in alignment with each other, the outer sides of said i tlues being in line with the inner sides of the This construction of the combustion-chamberand upper section renders a special formation necessary at the points where the nipples connect the water-space of the upper section with that of the combustion-chamber section, and

this consists of the enlargements 21, extending inwardly from the inner line of the combustion-chamber wall, and in these enlargements the sockets are formed for the connecting-nipples. The sections are each cast in one piece, requiring no planing or iitting, and may be put up and taken down Without Each of the upper sections has a small depending iiange-26, which fits into the groove at the outer edge of the next section below. Each section also has a recess in its side extending vertically, and slotted flanges extending across these recesses receive tie-bolts 22, which hold the sec- IOO tions together. The outer shell of the boiler is supported upon the base-section. The upper section is east with openings in line with the return-flue, and by removing the covers 25 of these openings the return-fines may be cleaned.

I claim as my invention- In combination, the base-section formed with a seat, the combustion-chamber section fitting therein having an overhangingportion provided with fines and water-spaces, the interchangeable sections above the combustionehamber sections, each having a portion extending inwardly and overhangin g the inner wall of the lower section, said overhanging portion being formed with uptake-fines and having also a return-fine commu nieatin g with the iiues through the overlmnging part of the 

